Stylus-adjusting device.



G. E. EMERSON.

STYLUS ADJUSTING DEVICE.

APPLICATION FILED DEO.11,1911.

Patented July 22, 1913.

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GEORGE EMERSON, OF NEWARK, NEW JERSEY, ASSIGNOR T0 HENRY WATERSON,

TRUSTEE, OF RICHMOND HILL, NEW YORK.

STYLUS-ADJUSTING DEVICE.

Specification of Letters Patent.

Patented July 22. 1913.

Application filed December 11, 1911. Serial No. 665,073.

T 0 all whom it may concern Be it known that I, GEORGE E. EMERSON,

a citizen of the United States, and a resident of Newark, in the countyof Essex and State of New Jersey, have invented certain new and usefulImprovements in Stylus- Adjusting .Devices, of which the following is aspecification.

. This invention relates to'a. Stylus adjusting device for a soundreproducing apparatus, to obtain sounds of various amplitudes.

The invention comprises means for easily locating a stylus, so that itwill protrude at different lengths from its socket member.

In the accompanying drawings Figure 1 represents a front elevation of asound reproducer and a fragmentary view of a sound record and supportingdisk, with an exemplification of the invention, Fig. 2 shows a partialsection of Fig.1 on the line 2, 2, Fig. 3 is an enlarged fragmentaryportion of Fig. 2, Fig. 4: shows a top view of the elements shown inFig. 3, with a partial section thereof as in the line 4, 4, Fig. 5 is arear view of Fig. 1, and Fig. 6 shows a left hand side view of Fig. 5.

The reproducer is shown with its casing 20 having the flange 21, whichlatter is somewhat extended at one end to form a supporting table 22.Vithin the said casing the vi brating disk 23 is supported in the usualway. Above the table 22 is located the socket member 26 with thetriangular longitudinal opening 27 and outer end 28. It has extendingfrom its sides a pair of lugs 31 in which are secured a pair of bearingsThe latter are supported on a pair of tapering pins 33, that extend fromthe table 22. A tightening screw 35 extends through the shell of thesocket member to clamp the stylus 36. A screw bolt 37 has its threadedend in threaded engagement with the bottom of the socket member 26 andpasses through an opening in the table 22. A curved spring 40 has anopening in its crown for said bolt and the ends thereof bear on thelower face of said table 22. A vibrating bar 42 at one end extends fromthe socket member 26, and has the other end fastened to the vibratingdisk 23 of the I sound re roducer. A lever 43 is pivoted by means 0 thepin .44 to the bar 42, and has preferablyan elongated opening whichengages a "pin 48 extending from the sliding plunger 50 having theabutting end 51. The sliding plunger 50 is located in the centralopening 27 of the said socket; member 26, and is axially in line withtheg tylus36 and can. bear against the end of the latter within thesocket member 26. A plurality of openings 51,52, 53 are formed in thevibrating bar 42, to lock the lever 43 in different angular positions bymeans of pin 47.

The invention is usedby locking the lever 43 in any of its variouspositions by means of said pin t7, thereby locating the plunger 50 indifferent positions in the opening'27, so that the end 51 of the latterwill be located at diiferent. distances from the outer end 28 of thesocket member 26. The stylus 36 is then secured in the socket member 26to abut against the sliding plunger'50 and the screw 35 is tightened inplace. By this means the stylus 36 can bemade to protrude at differentlengths from-the socket member 26, and with its varying lengths itreceives vibrations of varying amplitudes, as it comes in contact with asound record 55 supported on the table 56. The varying amplitudes aretransmitted to the vibrating disk 23 to vary the sounds produced by thelatter. With this invention one stylus takes the place of several whendifferent sounds are to be obtained by the reproducer.

It is to be understood that the invention as described in thisspecification and-shown in the drawings can be modified from theparticular exemplification represented without departing from thespirit'of the invention.

Having described my invent-ion what I desire to secure by Letters Patentand claim is:

1. In an apparatus of the character described the combination of a casinof a sound reproducer, a vibrating bar for the apparatus, a stylus forthe apparatus ooa-cting with the vibrating bar, a plunger bearingagainst said stylus to cause it to protrude at various lengths from itssupport, and means to move said plunger in one'direction and in adirection opposite thereto.

2. In an apparatus of the character described the combination of acasing of a sound reproducer, a vibrating bar for the apparatus, astylus eoacting with said bar, a plunger bearing against said stylus,means connected to the plunger to move it in one direction and in adirection opposite thereto and means to lock said plunger in dif- 'soundrep roducer, a vibrating disk ferent positions to protrude the stylus atvarious lengths from its support to cause the a paratus to produce-soundvibrations of di erent amplitudes. 3. In an apparatus of the characterdescribed the combination of a casing of a sound reproducer, a vibratingdisk for the casing, a socket member for the casing, a vibrating barconnecting the socket member and the vibrating disk, a plunger withinsaid socket member, means connected tothe plunger to move it in oppositedirections, means to lock said plunger in different positions and a.stylus in the socket member abutting against said plunger. 4. In anapparatus of the character described the combination of a casing of a orthe casing, a socket member for the casing, a plunger within the socket1nember, a lever pivoted in the apparatuswith one end thereof pinned tosaid plunger, means to lock the lever in different positions and astylus in said socket member abutting against said plunger.

5. In an apparatus of the character described the combination of a.casing of a sound reproducer, a vibrating disk for the casing, a socketmember for the casing, a vibrating bar connecting thesocketmember andthe vibrating disk, at table formed with the casing, a palr of pinsextending from the table, a'pair of lu s on the socket member supportedon sai pins, a flexible connection between said socket member and saidtable, a sliding plunger located within the socket member, means to movethe plungel in one direction and i a direction 0pposite thereto and astylfis in the socket member abutting against said plunger.

6. In an apparatus of the character described the combination of acasing of a reproducer, a socket member flexibly connected to the bodyof the reproducer', a vibrating disk within the body of the reproducer,a vibrating bar connecting said disk and socket member, a movableplunger within the socket member, a lever pivoted to the vibrating barWith one end pinned to said plunger, means to lock said lever indifferent angular positions on said vibrating bar, a stylus in thesocket member abutting against said plunger and means to clamp saidstylus in different operative positions. r. 7. In an apparatus of thecharacter described the combination of a casin of a reproducer, a tableextending from t 1e casing, a pair of tapering pins supported on saidtable, a socket member, lugs extending from said member bearing on saidpins, a bolt extending from said socket member and passing through anopenin in said table, a spring bearing between t e head of said bolt.and said table, a movable plunger within the socket member, a vibratingdisk with in thecasing of said reproducer, a vibrating bar having aplurality of openings connecting said disk and the socket member, alever with an opening pivoted to said bar and one end thereofpinned tosaid plunger, a pin to engage the opening in the lever with any of theopenings in the vibrating bar, a stylus in the socket member abuttingagainst said plunger in various positions thereof and a screw to clampthe stylus in place.

Signed at the borough of Manhattan in the county of New Yorkand' Stateof New York this 5th day of December A. D. 1911.

' GEORGE E. EMERSON.

Vitnesses:

A. Ann BONNEVILLE, I. A. Rrronn.

